1. You have been a qualified teachers and even better friend. Thank you for all that you have done.

2. You are not only a good teacher but our close friend. Thank you for helping us make something of our lives.

3. You are like a third parent. We all love you and respect you.

4. Thank you for instructing my child.

5. My sincere thanks to you for being my childs teacher.

6. A teacher affects eternity； he can never tell where his influence stops.

7. Earnest as father's words, earnest as friends and relatives.

8. You are the candle light, illuminating the childish mind.

9. You are a candle, burning yourself and illuminating others.

10. A teacher is a candle that lights the way, enabling us to explore the paths of knowledge.

11. A teacher's dedication is as enduring as a silkworm's thread, their passion as fierce as the glow of a burning candle.

12. Thankyourforimpartingtheknowledgeandskillstome!

13. We are more thankful than we can express.

14. The man who can make hard things easy is the educator.

这些句子可以用来表达对老师的感激之情，涵盖了老师作为教育者、朋友和榜样的多重角色。希望这些句子能够帮助你更好地表达对老师的感谢。